Distances along a line
Four points, A, B, C and D, lie on a straight line. Three distances between them are given, and the student works out a fourth, such as the distance from B to D.
Some lengths overlap, so the student has to decide which to add and which to take away, using the diagram to see how the pieces fit.
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What changes each time
- Different distances every time
- Different pairs of points asked for
- Lengths in centimetres
More measurement practice
- Ordering by length (Grade 1)
- Measuring with a ruler (Grade 2)
- Converting units (Grade 3)
- How much is left? (mixed units) (Grade 3)
- Reading a measuring jug (Grade 3)
- Reading a kitchen scale (Grade 3)